Darren is finding the equation in the form y=mx+b for a trend line that passes through the points (2, 18) and (–3, 8). Which value should he use as b in his equation?

Answers

Answer 1
gradient = (8-18)/(-3-2)
= -10/-5
= 2

y = mx + b , at point ( -3,8 )
8 = 2(-3) + b
8 = - 6 + b
b = 14

we cannot simply take one of the y coordinate as value of b because b is the interception of straight line,not a point
Answer 2
Hello!

B - Y-intercept

First, let's write out the equation by finding the slope

[tex]y = mx + b [/tex]

[tex] \frac{8-18}{-3-2} = \frac{-10}{-5} = 2[/tex]

Our slope is 2. Let's plug this in

[tex]y = 2x + b[/tex]

Now let's find the y-intercept. Plug one of the x and y values into the equation. I'll use the ones for (2, 18) since they're positive.

[tex]18 = 2(2) + b 18 = 4 + b 18 - 4 = 4 - 4 + b 14 = b [/tex]

He should use the number 14 as the y-intercept. Here's what his equation will look like.

[tex]y = 2x + 14[/tex]

Hope I helped! :3





Related Questions

Find the unknown. 1,025 = ( × 9) + 17

Answers

112 is your answer I think.


   112 x 9 = 108 + 17 = 1,025

A recipe requires 4 tsps and 1 fl oz. Which measurement is greater?

Answers

Answer: 1 fl oz is greater than 4 tsps.

Happy to help! :)
1 fl oz. s greater than 4 tsps but 6 tsps is the same as 1 fl oz.

Hope this Helped!

;D
Brainliest??

Plaese help me i will give you 20 points!!!!!

Answers

Since it took 10 years for the price to rise by 11 cents, you could estimate that it would take around 7-8 years for it to rise by 8 cents to reach .52.

I hope this helps!

The sum of 6 times a position number and 1 is the same as the sauare of 1 less than the number

Answers

If the number is x, then:
6x+1= (x-1)^2

Now we just need to simplify it
6x+1=(x-1)*(x-1)
6x+1=x^2-2x+1
8x=x^2
8=x

The number is 8.

To check the answer
6*8+1=7^2
49=49
correct :)

Which expression is equal to 15x - 6

Answers

Final answer:

The expression 15x - 6 is already in its simplest form and cannot be simplified further without additional information or context.

Explanation:

The student is asking for an expression that is equal to 15x - 6. In mathematics, we often look for ways to simplify or manipulate expressions to find equivalents. However, the given expression 15x - 6 is already in its simplest form and cannot be simplified further without additional context or constraints. Sometimes in algebra, we expand, factor, or use algebraic rules to rewrite expressions, but without more information, 15x - 6 stands as it is. It's important to ensure that we understand the context in which an expression is used, as this could influence how it may be manipulated or simplified.

Geometry help plz I don’t get it

Answers

We know volume of a cylinder is v=2(pi)(r^2)(h)

Since it gives us the volume of 4019.2, we must work backwards.

1) Do the equation.

The problem starts us off with what we know already, which is 4019.2=2(pi)(r^2)(h). Since we know radius is 8, we can subsitute 8 for r and with the square unit, get 64. This leads to now 4019.2= 2(pi)(64)(h).

2) Divide by 2.

With the two in the equation, we must divide both sides by 2. This starts and ends with 4019.2/2 and 2(pi)(64)(h) divided by 2, giving us 2009.6=(pi)(64)(h).

3) Divide by pi.

To move us closer to the answer, you must divide both sides by pi to help us find out what the height is. So 2009.6 divided by pi, if simplified, should give us 640=(64)(h).

4) Divide by radius squared.

Now for final part. With h in the grasp, we divide both sides by 64 to leave h alone at last. So with 640/64, that gives us 10=h.

Therefore, the height is 10 units tall and that is the answer.

Hope this helps. Have a good day.

4 mi= ft and 5 mi=. yd help me

Answers

4 miles= 21120 ft
5 miles= 8800 yd

NEED HELP ASAP!!! Which graph represents the given inequality? 3x -7y < -21 

Answers

Hello there, and thank you for asking your question here on brainly.

Short answer: The first graph, A.

Why?

The equation 3x - 7y < -21 is a dotted line that passes through -7 on the axis. Therefore, the correct answer is A.

Hope this helped you! ♥

Answer:

Step-by-step explanation:

Given the inequality

3x —7y <—21

Make y subject of formulae to know the slope and intercept on y axis

—7y < —3x — 21

Divide through by -7, note the inequalities sign will change since we are dividing with a negative

Then,

y > 3x/7 + 3

Then, the intercept is 3 and the slope is 3/7 when compared to equation of a line y = mx + c

We know that

y is greater than 3x/7 + 3, so the upper part should be shaded since y is greater than 3x/7 + 3

Then, option B and C are wrong since the below is shaded

Let find the intercept on the x axis to know the answer between A and B

I.e. when y = 0

3x —7y <—21

3x < —21

x < -7, then, line should pass through the negative of x and not positive x

So, the first option (A) is correct

is Jeremy Camp says horse 12 gallons of water each day how many 1 quart pails of water is that

Answers

Multiply total number of gallons per day by number of quarts in one gallon

4 quarts= 1 gallon

= 12 gallons * 4 quarts in 1 gallon
= 48 quarts


ANSWER: He would use 48 quart pails of water per day to give his horse 12 gallons of water.

Hope this helps! :)

What is the slope of a line parallel to the line whose equation is 3x - 4y = 8?

A. -4/3

B. -3/4

C. 3/4

D. 4/3

Answers

3x - 4y = 8
4y = 3x - 8
  y = 3/4 x - 2 ; slope = 3/4
parallel lines have same slope

so answer is C. 3/4

The slope of a line parallel to the line with the equation 3x - 4y = 8 is 3/4, which is option C.

To find the slope of a line parallel to the given line, first, we need to write the equation of the given line in slope-intercept form, which is y = mx + b, where m is the slope, and b is the y-intercept. Starting with the equation 3x - 4y = 8, we rearrange it to solve for y:

3x - 4y = 8
-4y = -3x + 8
y = (3/4)x - 2

The slope of the original line is therefore 3/4. Lines that are parallel to each other have the same slope. Therefore, the slope of a line parallel to the given line is also 3/4, which is option C.

Which is equivalent to 4 square root 9^1/2x? Choices are: A) 9^2x B) 9^1/8x C) square root 9^x D) 6 square root 9^x

Answers

it should be B im not sure

Answer: The correct option is B.

Explanation:

The given expression is,

[tex]\sqrt[4]{9^{\frac{1}{2}}}x[/tex]

Use the property of radical expression [tex]\sqrt[n]{x} =x^{\frac{1}{n} }[/tex].

[tex]\sqrt[4]{9^{\frac{1}{2}}}x=(9^{\frac{1}{2})^{\frac{1}{4}}}x[/tex]

Use the property, [tex](x^m)^n=x^{mn}[/tex]

[tex]\sqrt[4]{9^{\frac{1}{2}}}x=9^{\frac{1}{2\times 4}x[/tex]

[tex]\sqrt[4]{9^{\frac{1}{2}}}x=9^{\frac{1}{8}x[/tex]

Therefore, the correct option is B.

how do I find the volume of a square polyhedron

Answers

First, find the volume. For a square polyhedron, the formula for the volume is the following:

Volume=length×width×height

Hope this helps.

Hello.

First, find the volume of the pool. For a rectangular prism, the formula for the volume is the following:

Volume=length×width×height

divide the total volume by 5 to find how long it will take for the pool to fill.


Havce a nice day


A snail has traveled 1.15 miles in 5days. There are 2,280 feet in a mile and 12 inches in a foot. How many inches did the snail travel

Answers

Final answer:

The snail traveled 31,464 inches.

Explanation:

To convert the distance traveled by the snail from miles to inches, we need to convert miles to feet and then feet to inches. We know that there are 2,280 feet in a mile. So, the snail travels 1.15 miles x 2,280 feet/mile = 2,622 feet. Next, we know that there are 12 inches in a foot. So, the snail travels 2,622 feet x 12 inches/foot = 31,464 inches.

If Mitchel ate 45 hot dogs in 3 minutes at the annual hot dog eating contest. What is Mitch unit rate?

Answers

Hello!

To find the unit rate you divide the amount of hotdogs ate by the amount of time it took

45 / 3 = 15

Mitchel ate 15 hotdogs a minute

The answer is 15

Hope this helps!

The unit rate is calculated by dividing the total quantity by the given time unit. For Mitch who ate 45 hot dogs in 3 minutes, his unit rate was 15 hot dogs per minute.

Unit rate is the ratio of a quantity to one, such as miles per hour or cost per item. To find Mitch's unit rate of hot dogs eaten per minute, we divide the total number of hot dogs by the time taken. In this case, Mitch ate 45 hot dogs in 3 minutes, so his unit rate is 45 hot dogs / 3 minutes = 15 hot dogs per minute.

A recycling bin in the The shape of a rectangular prism has a volume of 9720 cubic inches. The base area is 324 square inches, what is the height of the recycling bin?

Answers

The height is 30in.  (see attachment)

if angle 7 has a measure of 153° in the given diagram, what is the measure of angle 6

Answers

the angle 6 is 153 because the angles are across from eachother

Really, really easy!
I know I should have figured it out, but:
Pictures from a company cost 650mb each, and songs cost 2200mb each. 16 files are downloaded in a single day, and the total mb from files downloaded adds up to 18150 mb, how many of each product was installed? Write two possible equations using p for pictures and s for songs.

Answers

The first equation would be 650p+2200s =18150 
The second equation would be p + s =16

Final answer:

This problem is a system of linear equations. The first equation represents the total number of files (pictures and songs) downloaded: p + s = 16. The second equation represents the total size of the downloads in terms of pictures and songs: 650p + 2200s = 18150.

Explanation:

This problem is an example of a system of linear equations. In this scenario, we have two types of files - pictures, represented by 'p', and songs, represented by 's'. The cost in megabytes for each is also provided. We can take these details and construct two equations:

Equation 1: The total numbers of pictures and songs downloaded: p + s = 16.
Equation 2: The total size of the downloads: 650p + 2200s = 18150.

You can solve these equations by substitution or elimination method to find the actual numbers of pictures and songs that were downloaded.

Learn more about System of Linear Equations here:

https://brainly.com/question/20379472

#SPJ12

X and Y are parallel.

If the measure of is 150 degrees, find the measure of this angle.
M∠ 2

Answers

do you mean m<1 = 150?
if so then below is my answer

X and Y are parallel
m<1 = 150
m<2 = 180 - 150 = 30

answer
m<2 = 30
Final answer:

Given that angles X and Y are parallel, and that angle X measures 150 degrees, angle Y would also measure 150 degrees, as corresponding angles are equal in measure when lines are parallel.

Explanation:

The subject in the question is Mathematics. Specifically it involves the topic of geometry, and concepts of parallel lines and angles. Given angles X and Y are parallel and the measure of angle X is 150 degrees, the measure of angle Y, by properties of parallel lines, would also be 150 degrees, as corresponding angles are equal.

Learn more about Angles and Parallel Lines here:

https://brainly.com/question/17237586

#SPJ3

what the answer is and how?

Answers

so what we know is that 15 is the diameter

However the formula to find the area of a circle is A=[tex] \pi [/tex]r²
So to convert the 15 in diameter to a radius you have to do 15÷2,which is equal to 7.5

Now we know that the radius is 7.5.
So what we do now is A=[tex] \pi [/tex]7.5²
Then after we find what 7.5² is we get A=[tex] \pi [/tex]56.25
Then what we do is 3.14×56.25, because pi= 3.14.
So when we do 3.14×56.25, we get 176.625
So the answer is A= 176.6 in²

Write a^-6 using a positive exponent

Answers

1/a^6
....................
Remove the negative exponent by rewriting  
a^-6  as 1/a^6

Convert 976 cups to gallons.

Answers

61 gallons. hope it helps
976 cups. if there are 16 cups in a gallon you divide 976 and 16 to get 61 gallons.

Answer:

just did test, answer is 61 gallons

Step-by-step explanation:

Heart 1 is translated 3 units down to heart 2. Which shows this transformation?
images go to
1 2 3 4
ANSWER ASAP PLEASE I BEG! ILL FAIL! IF NOOOOOT!

Answers

Answer:

Image IV

Step-by-step explanation:

We are given that

Heart 1 is translated 3 units down to heart 2.

We have to find the image which shows this transformation.

The translation rule when a figure is shift 3 units down is given by

[tex](x,y)\rightarrow (x,y-3)[/tex]

The coordinates of a point lie on heart are (-2.5,3)

After translation 3 units, the coordinates of corresponding point which lie on the heart

[tex](-2.5,3)\rightarrow (-2.5,0)[/tex]

Therefore,the heart shift from II quadrant to III quadrant.

Image I is not true because the heart 1 shift to heart 2 in  quadrant III not in IV quadrant.

In image II ,the corresponding point of the point (-2.5,3) is (-2.5,-3).

Image II is not true because the corresponding  point is (-2.5 ,0) not (-2.5,-3).

Image III is not true because heart 2 should be in quadrant III not in quadrant I after translation 3 units down of heart 1.

Image IV is true because the corresponding point of the point (-2,5,3) is (-2.5,0) and heart 2 lies in quadrant III.

what are the intercepts of 7x+2y-14z=56
A. (8,0,0) (0,-28,0) (0,0,-4)
B. (8,0,0) (0,28,0) (0,0,-4)
C. (8,0,0) (0,28,0) (0,0,4)
D. (8,0,0) (0,-28,0) (0,0,4)

Answers

Since the equation is in 3 variables, there will be 3 intercepts:

1) x-intercept
Where y and z coordinate are zero.
So, we can say
7x + 2(0)-14(0) = 56
So, x = 8 is the x-intercept

2) y-intercept
where x and z coordinate are zero
So, we can write
7(0) + 2y - 14(0) = 56
So, y = 28 is the y-intercept

3) z-intercept
where x and y coordinates are zero
So, we can write
7(0)+2(0)-14z=56
So, z=-4 is the z intercept

Therefore, the correct answer to this question is option B

In the last basketball game, the panthers scored 63 points. This was seven times the number of points that Reilly scored. Write and solve an equation to find the number of points Reilly scored
And how much did the rest of the team score

Answers

7x___=63 Sorry I don't understand the
second part but your welcome:)
÷7. ÷7

__= 9

HELP ME PLZ I REALLY NEED YOUR HELP ANY one 20 points

Answers

The first proposal identifies total costs for materials and labor. The proposed charges add to ...
  410.20 +919.60 +9675.00 = 11,004.80
When divided by the number of seats (4250), the per-seat amount is computed to be
  $11,004.80/(4250 seats) ≈ $2.5894/seat

The second proposal breaks out charges on a per-seat basis, so those can be added directly to give a per-seat total.
  ($0.35 +0.75 +1.50)/seat = $2.60/seat

The second proposal is about $2.60 -2.5894 = 1.06 ¢/seat more than the first.

find the nth term of the sequence

Answers

This is a Changing Difference Sequences:

Given:              11            20           35            56           83
1st difference :         9             15            21            27
2nd difference:                  6              6               6

Formula : nth term = a + (n - 1)d + ½(n - 1)(n - 2)c
a = first term = 11
c = second difference = 6
d = difference between the first and the term

So we substitute all these known values into the formula:

nth term = 11 + (n - 1)(9) + 1/2(n - 1)(n - 2)(6)

nth term = 11 + 9n - 9 + 3(n - 1)(n - 2)

nth term = 11 + 9n - 9 + 3(n² - 3n + 2)

nth term = 11 + 9n - 9 +3n² - 9n + 6

nth term = 3n² + 8

Answer: 3n² + 8

Please help me with this question.

Answers

The easiest way to solve this is to put everything with a common denominator (I chose 100 because it's simple):

1. 8/100, 35/100, 40/100
2. 69/100, 75/100, 8/100
3. 70/100, 85/100, 79/100
4. 17/100, 15/100, 37/100

So the answer is the first one!
The answer should be the first one 

What is the probability that a point chosen at random in the given figure will be inside the smaller triangle? Enter your answer, as a fraction in simplest form, in the box. P(inside smaller triangle) = $\text{Basic}$ $x$$y$$x^2$$\sqrt{ }$$\frac{x}{ }$$x\frac{ }{ }$$x^{ }$$x_{ }$$\degree$$\left(\right)$$\abs{ }$$\pi$$\infty$ A triangle with a base of 2 centimeters and a height of 2 centimeters is within a larger triangle with a base of 6 centimeters and a height of 5 centimeters. The sides of the inner triangle do not touch the sides of the outer triangle.

Answers

The answer is 51/100! i had this question! ( yes it may seem confusing because all of the symbols but this is what happens when you copy and paste it! ) 

Answer:

51/100

Step-by-step explanation:

Lisa is extending the width of her son's sandbox. it is currently a rectangle that is 2 yards long and 18 inches wide. she wants it to cover an area of 4 yd in total. by how does she have to increase the width to achieve new area?

Answers

1.5 yd should be increased to the width:

1yd=36inch

18inch×1yd/36inch=.5yd

lw=area


4yd²=2ydw

2=w

2-.5=1.5yd

Given: KLMN is a trapezoid, KF =10 MF ║ LK AKLMF = AFMN Find: KN

Answers

Final answer:

The question mixes physical and geometric concepts without a clear relationship or sufficient details to calculate the length of KN in the trapezoid KLMN, making it difficult to provide a step-by-step solution.

Explanation:

The question appears to involve various mathematical and physical concepts, most notably relating to trapezoid geometry and principles of force and motion. However, the specific information provided does not directly lead to a clear method for finding the value of KN in a trapezoid given the other conditions mentioned. It mixes principles from physics, particularly force equations, with geometric properties of trapezoids without presenting a typical geometry problem's clear setup or goal.

Normally, to solve for the length of a side in a trapezoid like KN, one would use properties of trapezoids (e.g., parallel sides, angle properties, or potentially the Pythagorean theorem if right angles are involved). However, the information given mixes unrelated physical equations (such as the force equation F = ma and friction models) with geometric figures without presenting a coherent relation between them.

Without additional specific geometric information or a clearer connection between these physical principles and the geometry of trapezoid KLMN, providing a step-by-step solution for finding KN is not feasible. It is advisable to request more specific details or clarification on how these concepts are supposed to interact within the context of the problem.

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